/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Public/MetasoundBuilderSubsystem.h
Returns whether node output exists.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Audio|MetaSound|Builder") bool ContainsNodeOutput ( const [FMetaSoundBuilderNodeOutputHandle](API\Plugins\MetasoundEngine\FMetaSoundBuilderNodeOutputHandl-) & Output ) const